System of beater engines



Nov. 28, 1933. w. v KNoLL 1,937,156

SYSTEM OF BEATER ENGINES ll/i 7 IIIIIIIHHIII! W. V. KNOLL SYSTEM oFBEATER ENGINES Nov. 28, 1933.

Filed June 28, 1928 3 Sheets-Sheet 2 Nov. 28, 1933. wf vf KNOLL1,937,156

SYSTEM OF BEATER ENGINES Filed June 28, 1928 5 Shee'LS-Sheel ."5

Ao, r apparatus Vas v Well asfthe means and mode of op-jf eration ofpulp-an'diibei' treatment and prepara- Patented YNokvl'ZS, f f

'William lv. Kneilj Dayton, ohio, assigner to' i'riie f Midwest- FultonV'Machine' Companyea corpo? `ration of *Ohio f Aplilieatio .nine 28, 19

The-present apparatus Ais"employed1 inr lieu ofj a series ofthec'ustomaryHollandertype 'ofgbeaters wherein the pulpfollowsa'circuitous path of repetitious'beatingfineachsucceeding tub,the

v cnditionedstockbeing transferredzfrom one Vtub to another. In thepresent system and apparatus there 'is f employed a plurality of lbeatern rollsv each housed in a i concave `A`setting vhaving vthereinthe customary bedy plate co-acting tizith'the^v` roll,

which units are interconnectedin series by interimediate conveyorstoreceive the material from u v onefbeater roll and dischargeit tothenext beatery roll for successivebeatingfaetion ,throughout the system.The pulp is thus;Worked*Withouttv cessationA or interruption from thevdige'stororfgrinder until itis ready: for` use upon the paperlmakingmachine.V The conditioned pulpl maybe dis--V charged Sinto .acommonoitake conveyor` at ,any

' Vstage `ofthe successive operations, Vthus making the system extremelyrflexible `and enabling the Y simu1tamaous`differenttreatmentofcistinetiy differentjkinds'of fiber.' ISoda-pllp and sulphitepulp-,"sulphite pulp and g'roundjWood,y or rags and 'fsulphite pulp; or'otherdesiredcombinations maybe '-initially'beaten separately andsubsequentlyY mixed togetherl in the desired.- proportion Vatanypredetermined point in theprocess to 'receive'. further combined"treatment. Furthermore vthe steps of claying,v sizingand-coloring may'peper'. Y formed automatically `and `cc,nntimiouslyfwith thek f beatingor fiberliberating'andshortening"opera-k y u Y u y l K y l thegravityoperated system illustratedfin-Figr. r

Fig. ,G-is ia' detail sectional viewjofa-mgdineoagf, Yforifofbeaterfrollorthe rod in illv type lwhichisl tions. *"4* 'n Y Y .M j azi'The "object of therinventionis 'tosimplifythe l operation,andunlikelyto'get out of repair.. z y It has beenjconservativelyestimated vthat an tion,V whereby Vthesuccessive steps of itreatment andpreparationA may beconti'nuously performed:

' Without: cessation or 'interruption andto provide an apparatus whichWill `'be compact, andfWhich will Vrequire [minimum powerf for'operation,` 'uni'- f form in. its iaction; substantially automaticin.

" will occupy .the ilocr'space oi" two Hollander type",

beaters and will :deliver approxi'rnatelyftvvei'it'y-V five tons of pulpper hour, which isthe equivalent output ofrtwentyvel-Iollandertype!beaters' With-V 2st. serial No'. zssz a power `reo uirerrierit of 2215H, P. 4as compared 1 with fa power requirement rOL2000-Il, VlI-f'of suchtwentyilvez Hollander Vbeaters Adeliveriigfajllre amount;

"'A Yfurther-"object `oftheinvention isto provide 60'vasystemand'methodof'great ilexibilityandcagf Apable of vhandling a WideVarietyjoiv materials r including Y s ulphite stock ',fsO'daVstoekukraftl stock,V groundwood, 'ba'gasse lropejute, rag and mixed A rpaper stoelgand furthermore anytwo or more'O 65" thesematerials 'maylbe'fsimultaneously treated ing in combination.V

'- A further; object ofthe invention iet'e provide While'` in thev`intermediate convwis between "suc-# ceeding beater rolls ofr-the`system.u g

*Withth above lpririfiari'f and other' incidental objects inview,Vas-will moreA fully appear the thereof, and the mode of fopei'ation, ortheir equivalents-l as hereinafter described and Aset 'lforthinlthe'clainiils'. r Y

wherein is showithe'preferred u v` u V u u necessarily the: only form'ffembodiment of lthe f invention,V l'ig'.'1'V is a plan lview'ofjaduplex` system of arrangement of beater rollsinvolving the-prestemincross section 'andindicating the transfer--V` ferred'from oneunit toanthebyrgravity; Qliig.Vv 4' is atop plan lview-and Fig. 5afrontelevation-of used at] onebr more I points; throughout the'y sys-'1tem. `F ig. 'Tis alon'gtudinal sectional viewofa portionpf. the beateryroll illustrated in Fig. 6. fl

` i' linvv the presentconstructionf each fof V'the beater 10ovunitsromprises:asbeater roll vor'drum 1` which is "Ordinarilypfovidedwth the usual proirutingiiy bars 'Of'maybe 'providedxwiihk:relleisfer beater Y barsiabout its periphery byiwhichthe pulp fibersare beaten,zrubbed orcutasgthe' character .ofthe 1.05 .material and itspurpose or condition of use may requiredl These beater-.frolls'larelocated in con:-

Acave housingsz which ls'ulostantially conform to a considerableportionof the periphery of ;the

b'eaterfrolls 1. Such concave? housings lor'set-V 1170 Vfertileagitating and` rhydrating Aof fthe.A stock ivspeoiication'the'inventionconsists;ofthe features 75V y Ylof-iconstructiong the-parts" and 'Combinations tingsf2 arereverselycurved at opposite sides of the beater roll or drum 1 to provide agraduallyv contracting receiving throaty 3 at the intake side of theroll and to Vprovide what is ineiect a backfall 4 at' the oppositeorvdischa'rge side of the roll.A Located at the bottom of each of suchconcave housings or settings 2 is the usual Abed plate 5 which may be of`any desi-redextentand, constructionin accordance with'thetype of rolland character of "the work to -be performed at the particular stageooperation.' TherpulpV tovbe operated upon is discharged into the throat3""of the Y concave housing or setting, preferably though notnecessarily, from a screw conveyor by which it is conductedgf romthefpreceding beater unit or other pulptreating'mechanism Such pulpcontinuously discharged into the throat 3 is subjectedy toasq'u'eeZing'` orwconipressing action of the roll or drum as the latterrotates carrying the vpulp downwardly between the roll and the concavewall of the housing. Thev squeezingfand rubbing action prec'zeding thepassageof .the-pulp between they bed plate y5 and the roll l greatlyfacilitates the fiber separation and better conditions the `pulp fortreatment over ,the bed plate. The treated pulpis carried up chargedoverthe rearwardoutwardly haring wall I the next siicceeziling beaterunit. During` itsV Vovf'vdthe housingfeor setting 2 `in quite ,thesaine.` `manner as pulpisiordinarily discharged yover `the usualbackfall.. l This discharged pulp is received in asecondconveyor,byawhiehY it is conducted to progress, through the conveyorsbetween succeed'- Ibeater unitsthe pulp is subjected to aconstanthydratingjand stirring action or agitation which facilitatestheli'berationof theiibers and reduces it to auniform consistencypreparatory tov reworking.

,. Such habermewifntheii memset don' veyors connecting themL ineseries.A maybe suc;y

unit and vdischargesinto `the intale side or throat 3 of the succeedingunit. Pulpentering the first Vunit of the .series from Ythe dgestorforstorage tank is conducted. successively through any \de Y; sired numberof the beaterA units, and whenthe pu1p.isreduced to the desiredCvOns'istency/itwis discharged into a common offtake conveyor' 19through anextension 8.of one of the intermediate conveyors `v'7. Theconveyor 9 which may4 vreceive pulp at `any intermediate Lstage Vcioperation-v"car-`V ries. the *pulp through' successive `stages ofvcolor-V ing, claying,szing\, etc..r The various-.tanks orv receptaclesfornsupplying therc'olo'ring,V filling and` sizing -materialscommunicates directlyrwith the-V ccmnrionv conveyor 9 asfshownat 10 andl11,. or

suchconveyor may discharge-into a; systemkof segregating conveyorsVillustrated hat 12, 113 and 14, with the branch conveyors of which thevari i ouscolor, sizing and lling tanksor vessels com-v. j municate asillustrated at'15', land 17; Y' f To provide for thetreatmentfot pulp-ofdiffer-- entcharacterlwhich may be later combined, onev kind of pulp'may .be introducedrinto the` first-1 beater'runit ef the series andafter -havingstra'- versed a p redeterrnined numberv of such units `itmaybe discharged into the conduit extension 8 into the common offtakeconduite. f At the saine time pulp of different character may be fedthrough a succeeding plurality of thesainev series ofbeate'r units, andafter having traversed the desired number of units such pulp ofdifferent i character mayv bedischarged into l,the same oiti takeconduitwherein the `two -kinds of L`beaten pulpare interxnixed with `eachther.'In'r Fig. 1k of the drawings there are shown two entirely i istinctsystems each comprising.,aplurality'cf beater units and two offtakeconveyor l*conduits 19.. The .conduit extension 8 leading from vthe VYbeatervunits of veach of theseparate systems'- are adapted tofdischalgeinto either of the offtake conveyor conduits 5,9 at will. Theseconveyors are providedy with gates' or valves, whichby their ofeither ofthe systems with either of the oltake conveyor conduits. 9.-?'It is alsounder--l stocd that the conveyor: conduits 7l are provided with valvesor gates,` iwherebyifinsteadjci #dise charging-norn1ally; `into thelintakeL side-foi a beater unit-suchconveyors'lrnay be caused-to dis'-chargeythroughthe conduit f extension VSfintokadjustment'nfxay'connectthe di'iierent beater arrangement allows greatexibilitysin-theoperation of thesystern-.andthe treatmentofthe pulp,

`perimltting the pulp .to tbe{dischargedrintothe c'talte conveyor 9atanyndesired stageofA opera: Thus-a `quantity of Apulp-may becausedtion.

to continue through the. -entirelgseries t untsbf the lsystem or itinaybe released nto the oltalie Yconveyor yconduit 9 afterhavingqvpassed through any desired portion of such beater-units, inwhich cc-'seif so desired, pulp of dii'erent,char.-`

acters may oelsimultaneously treated in. thesuc ceeding beater unitl for-dischargev into.: the Ysaine ,O itake cenveyor conduit. 9 or intoyldifferent vc i'ftalgeccnveyor of which two have been shown,

A gate.or`,..-valve 18.in lthe ydistributing system,

separatesy the rnaterial 'fromA the respective ofitake conveyors 9 sothat such materialis not neces# sarilyintermixedf Y Y t Fig.l 2 showstransverse "sectional view'sof several, beater `units of the seriesillustrating howthe discharge Accnveyor `'conduit of one unit becomesthe intake or supply'conveyor @tithe-succeeding l unit. l While screwconveyors -are preferablyj,ein-` ployed for .transferring the.,rnaterial 'throughE the intermediate Qconduitsl antinforsimultaneously:k -1

agit-ating @and 'hydrating' l the beaten pulp; such .pulp maybefconveyedfromfoneunitto another rigs. 3,4 ande, wherein the; beaterreggiana their.V concavehousings v2` are located.;- 'atdifferentgjlevelsVA as more-*clearly yshown'in,lig.-; 3.; f'TheQ pulp. is initiallysupplied tothe heater unitori i the; highest levelfandV dischargedrfrointhe. outi put side of'each beaten-unit to-theY intake; oflthelsucceeding ,beater` yunit-50h; the-next lower g level -Howevergasshown in Fig. {lj-the beater units `are offset laterally; relative toeachother on -thediferent'-level so that thepbearten pulpf.

is made to travelV a greater 'or4 less distance through theintermediate'conveyoryin'fquite the same manner. as isillustratedinFig; 1. 'During the travelzrof the beaten pulp through the' con@ Y veycrsystem 'from onelbeater unit'to'another, whether itbe'byzmeansfofscrewconvey'orsas in pulpissubjected toimoreuorv less agitation whichcauses 'the .water toapenetrate .more thoroughly into thebeatenfiber,'causing'A thelbers tobe T i v8;. In an a'pparatu's'ofvthecharacterdescr-ibed,

a plurality-'of `beater/units each including'a yrevo- `luble beaterroll,V a concave settiIig'fthGreOr, a

-pulpin'take portionv at-one side of'the roll and` a'pulp dischargeportion at the opposite side of the 'f roll, saidfplurality "of beaterunits" beingfdi Vvided intoA separate series,A `conveyor ,conduitsconn'ectingv the discharge portion' of l each `unit,` With the intakerportion of another? unit "fof the 1 same series, anv oftake Vconduitcommon tothe! units of both series and outlet conneetionsfordischargingpulpinto said common conduitatinterme'- fdiatefstages of operation-ofthevunits of the rel lspective series.-`

9.` In an apparatusjof a'plurality of beater unitseach'including-arevoluble beaterV roll, a"`concavesetting?therefor-,f"aJ pulpfin-takeportionr at one sideV ofv the rollfand a pulp'discharge portion. at the oppositeside ofthe roll,saidfplurality oir beaterunits 'being divided into separate series,conveyor conduits connecting the discharge portion of 'each unit withthe intake portion' of` another unit of the same series, separateofftakeconveyor'v conduits andffoutletconnections connecting the dischargeVportions of unitsoi the diierentgseries With'y both said "offtakeconduits, and cuto'sV Wherebyfsuch discharge may be ,directed to one or`the otheru of v 'f :beate thef'oftakexconduits atfvs'lill';` l0.-In abeater-'unitforpulpy a rotariyfdrum, afconcave housing substantiallyconforming to ythe.lovversegmental shape of the drum, the' op-V"overwhich the material is discharged laterally,

K form a gradually contracting throat into whichpositejends ofsuchconcave housing'beingfoutl Wardly'iiared at 'oppositesides ofthe-drum to afford' Vparallel supply. .anddisch'arge Y channelscommunicating with s'u'ch flared portion, aA gradi uallyf,contractingreceiving throat'at the intake side of the drum into whichthesupply-conduit laterally discharges Yand a 'bacl'fall over Whichithel pulp is dischargedat the output'sideof the-:drum

intothe discharge conduit, said supply and' discharge conduitsconducting the material't'o'gand awayffrom the -rollinfdirectionssubstantially parallel therewith. A- v f if f-r' `A1l'. Abeater unit'for. pulp, comprisingarev lubleubeater'roll, a concavehousingconfrming Vt'othe lower 'periphery of-the roll 'WithinfWhich;

theY roll is positioned, said concave housing Lbeing extendedupwardly',v in' flaring relation With'lthe periphery of the lroll at theintake side thereof to thejmate'rial operated upon is lreceived and-atransverse. supply conduit -discharging laterally intoijsaidithroat. I'i .1; w *12. Abeater unit for-pulpincludingajrevoluble beater roll,a'concave'receptacle vvith,in-'Whic'zhthe'l roll is-concentricallymounted, said` receptaclebe-' c. ing yextended upwardlyginfflaringrelation with'k the fperipherylofV the roll at rboth theiront and back'thereoi` 'and supply 'and discharge conduits conveying material to andfrornthe roll in direc-l tions parallel g therewith and fcommunicating'late'rally with `the Haring portions 'of the receptacleat opposite sidesof the'roll.

13. vbeater unit `for pulpvincluding "a 4revo- "lubl'e beater roll,` lav concave receptacle Within.` v which theroll is concentrically mounted,said receptaclebeing extended upwardly in flaring` re-' .lation with theperiphery ofthe 'ronfatbotn the front and back thereof, saidflaringportionsfo'r the receptacle being of convex form and` trans-r'versefsupply and discharge vchannels V`comm,uni'"` `eating with suchflaring portions'ofV thereceptacle.

the "character "described,

n 14;. The herein described"methodn of pulp treatgment lconsistinginfthe simultaneous progressive canyi'ngfo'n continuous operation.

315. VAbeater unitcomprisir'igv a revoluble drum,

l a concave setting inwhich -the drum is' mounted, a vpulp'"receivingvportionvv at one side of the drum andapulp discharge portion at theopposite side longitudinally disposed pockets aboutf its peripherygjafplurality of Yrollers looselyjournalled in saidfpockets forl limited'lateral movement under in'ue'nce. of "gravity as the carrying drumrotates.

16. A beater uunit` comprising-va revoluble'drum'.

a concave' setting in which the drum isv mounted, apulpreceiving`portionat'one side ofthe drum and a'pulgq'discharge portion'at theopposite vside lof the' drumrjand' a plurality'fof` vgravity woperated Yinembers'looselymounted aboutr the periphery of the ,druwnfand free forto'and'fro movement in radial directions imping'ing'upon the pulp as thedrum etes: i i

f1 beat rl for` pulp, including alrevolubleV rlroll, A oncavei'housingiiiithin which the roll 'is moiinted, 1 and a'iconve'yori "located atthe `suppl jside'bf the Vroll*through whichrth'e mate-A rialiisbon'ductedfto lthefroll in avdir'ctior sub-l Y stantwially`parallelwith, thaXiS'thereQf andfrom which such material overflowslaterally from the c'onveyorextending intothe housingA besidev the roll*thereby`V tending to distribute 'rrateriall supi,- plied 'to the rolough'out substantiallyfitlie full 1ngtnytnereor; f Y A f f 18. erf

eat it 'for pulp including a revoluble v 211,? a concat/ je 'housingWithin 'Which'ltlie rollv -`moin ited fand linvcyor located at@ the.discharge side iof the rolcxtending below the level?!'i'the` side-Wallof the housing andf parallel .Withthe rollthrough which thematerial'isiconvductedavvay ,fromV thefbeaterrollin Ia directionSubstantially pralllelvvithfthe axis thereof rand. Whichreceivesi-theVmateriallaterally frein-'the i housing' throughput@substantiallythefuiifiepgth f th @1L- L f ,-z j f "19`.' Afbe'at'er iinitfor pulpincl-iidin'g'a revoluble' beater"roll,` a concave housingvvithinwhichj'the roll is mounted, gand'ffs'upply and2 discharge ,chan--I I'els :extendingj'i v' parallel srelation 'with thek roll onefat'ea'ch 'sidefthereof for? conducting the nia- Vterialto and 'fromtheroll'in direotioi'isr-jloungitu-y 130,

dmauytirer'eof. p y l .n Y 5720i'Aljeaterunit forv pulp, including arevoluble'j beater oil, a'concave housing Within which the roll ismountedjafsupply channel *extending ini` parallel relation"Withthefrollat lthereceiving 135 sideoftheho'using 'and conducting the material'longitudinally-'ici the'rollrand 'discharging laterally into the housingbesidey the rolllie `j 22,1. A beater unit Vfor pulp, includingarevoluble .beater rollga concavefhousing-.Within*which the 14@roll-fismounted, andadischargechannel extend: ingfinparallel relationwithr'theiroll at the dise chargeside of theghousing land communicatinglaterally ldirectly therewith vfor conducting' the material] away freni#the roi-1 in :a 41gngitmiinai- 145` directionrelative"tlfleretcfsaidj'channel` receiving i the ydiscllargY o'nrthehousing throughout Subj 'Stahtiallvtn rumene/tn of the ron* y225'Ihel'ier'ein` describedjmethod -of'treating pulp, Lincluding"separately treating 4"diferentiltt batches of 'pulpwhile iiowinginjcontinuou's separate streams-progressively through successivestagesjintermixing the separately treated streamsr` l as,avsmglegprodluct' Y A y pulpv by separately treating different continu-kvf treatment.

Y 23.V The herein' described method. oftreating pulp, includingcontinuous operation of simultaneously ,beating separatelbatches of pulpeach flowing in a separate stream. throughsuccessive beaters, Yintermixing the.; separately beatenbatches of pulp andcollectivelysuloijectingthe" intermixed pulp `batches to vfurthertreatment.

1 n i forrnoyementtherein to positionsin .which they 24:.` The hereindescribed `rn thodof jtreatingi:

"roll, and a fsurfacewith which the elements pro- Y "gressively .coactto eectan'impinging and ruba while flowing in a single stream.l

ously flowing streamsV of rpulp through successive beaters, uniting thediierent streams of pulp into r aY single continuously `flowing stream,andfsub'-V jecting the pulp in tween. such single stream' to further 25;A beater engine 4for pulp" making, including a revoluble roll andabedplate with which "the rolll cooperates andybetween which bed .plateand i `the roll the pulp operated upon is passed, and .a

plurality yof beater elements loosely arranged about the periphery ofthe roll and -freely movable 'radially relativetheretohaving operatlyeengageal y ment when extended with the'pulp passing over` 26. A beaterenginefor pulp making, including'y a revoluble yroll-having in itsperiphery a plural.

ity` of longitudinally extending recesses,V and a protrude "beyond :theperipheralsurfacelof the bing'action uponthefmaterial passing therebef10oA plurality ofelongated `beater;elements loosely coniinedwithinsaidperipheral recesses and free'v ,795 mLLIAM V.KNOLL.

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